Nipple



' F. BROWN May 17, 1932.

NIPPLE Filed Odt. 24, 1930 1M 'EN TOR.

Frank [in Browm d ATTORNEY.

v Patented May 17, 1932 UNITED STATES PATENT OFFICE FRANKLIN BROWN, 01: WHITE HOUSE, NEW JEBSE'L ASSIGNOR '10 GENEFAL HEALTH CORPORATION, OF WARE PHILADELPHIA, PENNSYLVANIA, A OORPORATION F DELA- mrrnr.

Application filed October 24,1930. Serial No. 490,975.

This invention relates nursing bottles.

One of the difliculties encountered in the use of the ordinary nipple is the leakage which occurs due to thecontinuous stretching of the rubber fabric or'rim of the nipple when applying or removing the nipple from the bottle. It is therefore the object of the invention to provide a nipple which will stay leak proof regardless of the stretching of the rim of the nipple.

Another object of the invention is to provide a thin resilient lip which contacts With the upper edge of the bottle and forms a seal against leakage.

Still another object of the invention is to provide a shoulder having a series of circular teeth for enga ing the top-edge, of the bottle and thereby orm a seal and prevent any leakage.

Another ditficulty encountered with the use of the ordinary nipple is the collapsing of the body portion when there is a vacuum in the bottle caused by the draining of the contents. Tt is therefore another object of the invention to provide a nipple having a thickened body portion gradually tapering towards the nipple portion so that the body portion will not collapse.

@ther objects of the invention will appear as the disclosure progresses. It is obvious that the actual needs of manufacture may necessitate certain mechanical changes. "it

to nipples used on is therefore not intended to limit the invention to the embodiment illustrated but rather to define such limits in the appended claims.

For a more general understanding of the invention attention is called to the drawings.

In these drawings like reference characters Y denote like parts throughout the specification. in the drawings Figure 1 is a cross section of the nipple shown applied to a nursing bottle.

Figure 2 is a cross section of a modified form of the nipple and K Figure 3 is a fragmentary detail of the ni ple shown in Figure 1.

eferring to the drawings in detail numeral 1 designates the nipple comprising a body member 2, a nipple member3 and a flange member 4. The body member is relatively thick at the base as at 5 and gradually tapers to the point 6 where it meets the nipple portion. Said nipple relatively thin wall mem er 7 and is'provided with a thickened ball shaped top 8 having the usual outlet 9.

The base of the nipple is provided with a circular groove 10 triangular in cross section as-shown in Figure 3 with the inside Ii 11 extending slightly below the base 12 of the body portion. As shown in Figure 1 when the nipple is applied to the bottle 13 the resilient lip 11 will'curve inwardly and form a seal against any leakage of the fluid. Should the flange member 4 stretch due to constant use of the nipple when being applied to and removed from the bottle the lip member 11 forming the seal will in no way be afiected. It will therefore be seen that the sealing feature of the device will last indefinately. Should there be any high spots at the top edge of the bottle the resilient lip will give where the high spots are, fully conform to the surface of the bottle top and thus make a. tight joint with the bottle.

in Figure 2 is shown a modified form of the nipple to be used on bottles having a narrow mouth. This form of the invention is practically the same asthat shown in Figure 1 with the exception that instead of one groove 10 being used, a series of circular grooves 14 triangular in cross section are shown. The advantage of this modification is that a multitude of lips 15 are formed for sealing purposes, which act in the same manner as the lip 11.

Having described my invention, I claim:

1. In a nipple of the class described, the combination of a body member having a thick tapering wall portion and a relatively thin nipple portion, a shoulder at the bottom edge of said wall portion, a circular groove triangular in cross section provided in said shoulder and forming an inner and outer wall member, the inner wall member being triangular in cross section and thinner than the outer wall member and normally extending below said shoulder, said inner wall member extending around the entire-inner ortion comprises adiameter of the said thick wall portion and adapted to curve inwardly when the nipple is applied to a bottle and make a leak-proof joint, and a skirt portion extendin slow the said shoulder and adapted to hug t e neck of the nursing bottle.

2. In a nipple of the class described, the combination of a body member having a thick wall portion and a relatively thin nipple portion, a shoulder at the bottom of said body portion, a series of circular grooves formed in the bottom face of the body portion, and a relatively thin flange member extending beyond said shoulder and adapted to hug the neck of the nursing bottle.

In testimony whereof I afiix my signature.

FRANKLIN BROWN. 

